Dr. Bree Blakeman found this possum hiding behind a computer in her office.

Bree Blakeman

"It wasn't until I went to check my computer on the far side of the room that I noticed a fluffy little face staring at me," Blakeman told BuzzFeed News. "And that's when I also noticed the toilet droppings and urine everywhere too. It all made sense."

Walked into my office and thought someone must have broken in because it looks trashed... and then I saw this little sweetie covering behind my computer. â£ï¸ pic.twitter.com/B4tuj0kYpT

"It seemed resigned and, of course, a bit shy and scared," she told the site. "Going by the number of books that had fallen from the shelves, I think it must have tried to climb up the shelves to get up through the ceiling again a number of times. So I think it was a bit exhausted too."

Blakeman said she left out some water and a carrot to help tide the possum over, as well as a "few kind words."

On Monday, the relocation team placed a box trap in Blakeman's office and left out fruit so they could try and safely move it from the building.

But the possum still hadn't budged by Tuesday, so they decided to let it stay in Blakeman's office for another night.

Looks like Possum will be spending another night in my office. It showed no interest in alternate accommodation provided (+ fresh fruit). The wildlife people will check again in the morning. pic.twitter.com/alyyXZ5Wf5

When they checked again on Wednesday morning, the box was still empty, but the possum had disappeared.

Final (happy) update: possum catcher checked my office again this morning & the possum wasnâ€™t in the cage but it seems to have found itâ€™s own way out of the room. After a bit of rest, some water and carrot it must have climbed back through the hole in the ceiling. ?? ?? ????